From: Johannes Berg <johannes@sipsolutions•net>
To: Li Yang-r58472 <LeoLi@freescale•com>
Cc: linuxppc-dev@ozlabs•org
Subject: Re: BogoMIPS no longer supported on PowerPC?
Date: Wed, 23 Aug 2006 12:37:33 +0200 [thread overview]
Message-ID: <1156329453.3914.13.camel@ux156> (raw)
In-Reply-To: <4879B0C6C249214CBE7AB04453F84E4D0FC209@zch01exm20.fsl.freescale.net>
On Wed, 2006-08-23 at 18:25 +0800, Li Yang-r58472 wrote:
> I noticed a recent modification to __delay has changed from using empty
> loops to reading timebase. Thus, breaks the calculation of bogomips,
> and makes it terribly low. Is the bogomips no longer being supported on
> powerpc arch?
What's there to be 'supported'? The only purpose of bogomips is
calibrating the delay loop, and that has changed now by using timebase,
hence bogomips no longer have a purpose. There was even a patch to
remove it from /proc/cpuinfo but I'm not sure whether that got applied
or not.
johannes
next prev parent reply other threads:[~2006-08-23 10:37 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-08-23 10:25 BogoMIPS no longer supported on PowerPC? Li Yang-r58472
2006-08-23 10:37 ` Johannes Berg [this message]
2006-08-23 10:55 ` Li Yang-r58472
2006-08-23 14:51 ` Olof Johansson
2006-08-23 16:47 ` Li Yang
2006-08-23 18:06 ` Linas Vepstas
2006-08-23 16:32 ` Tim Bird
2006-08-23 16:46 ` Li Yang
2006-08-23 16:50 ` Olaf Hering
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